Mary Vaux Walcott (American, 1860-1940)
Mary Vaux Walcott (American, 1860-1940)
Lafayette F. Cargill (American, 20th Century)
Mary Vaux Walcott (American, 1860-1940)
Mary Vaux Walcott (American, 1860-1940)
Mary Vaux Walcott (American, 1860-1940)
Mary Vaux Walcott (American, 1860-1940)
Sydenham Edwards (English, 1768-1819)
Sydenham Edwards (English, 1768-1819)
Mary Vaux Walcott (American, 1860-1940)
Wilhelm Steinhausen (German, 1846-1924)
Mary Vaux Walcott (American, 1860-1940)
Mary Vaux Walcott (American, 1860-1940)
Mary Vaux Walcott (American, 1860-1940)
Mary Vaux Walcott (American, 1860-1940)
Mary Vaux Walcott (American, 1860-1940)
Ferdinand Keller (German, 1842 – 1922)
Ferdinand Keller (German, 1842 – 1922)
Josef Lauer (Austrian, 1818–1881)
Rudolf Koch (German, 1876-1934)
Leopold Zinnögger (Austrian, 1811-1872)
Christian Rohlfs (German, 1849-1938)
Leopold von Stoll (Dutch, 1808-1889)
Leopold von Stoll (Dutch, 1808-1889)
Leopold von Stoll (Dutch, 1808-1889)
Emil Czech (Czech, 1862-1929)